1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=loop-vectorize -prefer-predicate-over-epilogue=scalar-epilogue -mtriple aarch64-unknown-linux-gnu \
3 ; RUN: -mattr=+sve -force-vector-interleave=1 -force-vector-width=4 -prefer-inloop-reductions -S | FileCheck %s
5 define float @cond_fadd(ptr noalias nocapture readonly %a, ptr noalias nocapture readonly %cond, i64 %N){
6 ; CHECK-LABEL: @cond_fadd(
8 ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
9 ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
10 ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], [[TMP1]]
11 ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
13 ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
14 ; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
15 ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
16 ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
17 ; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
18 ; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
19 ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
21 ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
22 ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi float [ 1.000000e+00, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
23 ; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[INDEX]], 0
24 ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, ptr [[COND:%.*]], i64 [[TMP6]]
25 ; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, ptr [[TMP7]], i32 0
26 ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x float>, ptr [[TMP8]], align 4
27 ; CHECK-NEXT: [[TMP9:%.*]] = fcmp une <vscale x 4 x float> [[WIDE_LOAD]], splat (float 2.000000e+00)
28 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr float, ptr [[A:%.*]], i64 [[TMP6]]
29 ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr float, ptr [[TMP10]], i32 0
30 ; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x float> @llvm.masked.load.nxv4f32.p0(ptr [[TMP11]], i32 4, <vscale x 4 x i1> [[TMP9]], <vscale x 4 x float> poison)
31 ; CHECK-NEXT: [[TMP12:%.*]] = select fast <vscale x 4 x i1> [[TMP9]], <vscale x 4 x float> [[WIDE_MASKED_LOAD]], <vscale x 4 x float> zeroinitializer
32 ; CHECK-NEXT: [[TMP13:%.*]] = call fast float @llvm.vector.reduce.fadd.nxv4f32(float 0.000000e+00, <vscale x 4 x float> [[TMP12]])
33 ; CHECK-NEXT: [[TMP14]] = fadd fast float [[TMP13]], [[VEC_PHI]]
34 ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
35 ; CHECK-NEXT: [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
36 ; CHECK-NEXT: br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
37 ; CHECK: middle.block:
38 ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
39 ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
41 ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
42 ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP14]], [[MIDDLE_BLOCK]] ], [ 1.000000e+00, [[ENTRY]] ]
43 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
45 ; CHECK-NEXT: [[INDVARS:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], [[FOR_INC:%.*]] ]
46 ; CHECK-NEXT: [[RDX:%.*]] = phi float [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[RES:%.*]], [[FOR_INC]] ]
47 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[COND]], i64 [[INDVARS]]
48 ; CHECK-NEXT: [[TMP16:%.*]] = load float, ptr [[ARRAYIDX]], align 4
49 ; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une float [[TMP16]], 2.000000e+00
50 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[FOR_INC]]
52 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS]]
53 ; CHECK-NEXT: [[TMP17:%.*]] = load float, ptr [[ARRAYIDX2]], align 4
54 ; CHECK-NEXT: [[FADD:%.*]] = fadd fast float [[RDX]], [[TMP17]]
55 ; CHECK-NEXT: br label [[FOR_INC]]
57 ; CHECK-NEXT: [[RES]] = phi float [ [[FADD]], [[IF_THEN]] ], [ [[RDX]], [[FOR_BODY]] ]
58 ; CHECK-NEXT: [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
59 ; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[N]]
60 ; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
62 ; CHECK-NEXT: [[RES_LCSSA:%.*]] = phi float [ [[RES]], [[FOR_INC]] ], [ [[TMP14]], [[MIDDLE_BLOCK]] ]
63 ; CHECK-NEXT: ret float [[RES_LCSSA]]
69 %indvars = phi i64 [ 0, %entry ], [ %indvars.next, %for.inc ]
70 %rdx = phi float [ 1.000000e+00, %entry ], [ %res, %for.inc ]
71 %arrayidx = getelementptr inbounds float, ptr %cond, i64 %indvars
72 %0 = load float, ptr %arrayidx
73 %tobool = fcmp une float %0, 2.000000e+00
74 br i1 %tobool, label %if.then, label %for.inc
77 %arrayidx2 = getelementptr inbounds float, ptr %a, i64 %indvars
78 %1 = load float, ptr %arrayidx2
79 %fadd = fadd fast float %rdx, %1
83 %res = phi float [ %fadd, %if.then ], [ %rdx, %for.body ]
84 %indvars.next = add nuw nsw i64 %indvars, 1
85 %exitcond.not = icmp eq i64 %indvars.next, %N
86 br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0
92 define float @cond_cmp_sel(ptr noalias %a, ptr noalias %cond, i64 %N) {
93 ; CHECK-LABEL: @cond_cmp_sel(
95 ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
96 ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
97 ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], [[TMP1]]
98 ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
100 ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
101 ; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
102 ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
103 ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
104 ; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
105 ; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
106 ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
107 ; CHECK: vector.body:
108 ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
109 ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi float [ 1.000000e+00, [[VECTOR_PH]] ], [ [[RDX_MINMAX_SELECT:%.*]], [[VECTOR_BODY]] ]
110 ; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[INDEX]], 0
111 ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, ptr [[COND:%.*]], i64 [[TMP6]]
112 ; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, ptr [[TMP7]], i32 0
113 ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x float>, ptr [[TMP8]], align 4
114 ; CHECK-NEXT: [[TMP9:%.*]] = fcmp une <vscale x 4 x float> [[WIDE_LOAD]], splat (float 3.000000e+00)
115 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr float, ptr [[A:%.*]], i64 [[TMP6]]
116 ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr float, ptr [[TMP10]], i32 0
117 ; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x float> @llvm.masked.load.nxv4f32.p0(ptr [[TMP11]], i32 4, <vscale x 4 x i1> [[TMP9]], <vscale x 4 x float> poison)
118 ; CHECK-NEXT: [[TMP12:%.*]] = select fast <vscale x 4 x i1> [[TMP9]], <vscale x 4 x float> [[WIDE_MASKED_LOAD]], <vscale x 4 x float> splat (float 0x47EFFFFFE0000000)
119 ; CHECK-NEXT: [[TMP13:%.*]] = call fast float @llvm.vector.reduce.fmin.nxv4f32(<vscale x 4 x float> [[TMP12]])
120 ; CHECK-NEXT: [[RDX_MINMAX_CMP:%.*]] = fcmp fast olt float [[TMP13]], [[VEC_PHI]]
121 ; CHECK-NEXT: [[RDX_MINMAX_SELECT]] = select fast i1 [[RDX_MINMAX_CMP]], float [[TMP13]], float [[VEC_PHI]]
122 ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
123 ; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
124 ; CHECK-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
125 ; CHECK: middle.block:
126 ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
127 ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
129 ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
130 ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[RDX_MINMAX_SELECT]], [[MIDDLE_BLOCK]] ], [ 1.000000e+00, [[ENTRY]] ]
131 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
133 ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_INC:%.*]] ]
134 ; CHECK-NEXT: [[RDX:%.*]] = phi float [ [[RES:%.*]], [[FOR_INC]] ], [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ]
135 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[COND]], i64 [[IV]]
136 ; CHECK-NEXT: [[TMP15:%.*]] = load float, ptr [[ARRAYIDX]], align 4
137 ; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une float [[TMP15]], 3.000000e+00
138 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[FOR_INC]]
140 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
141 ; CHECK-NEXT: [[TMP16:%.*]] = load float, ptr [[ARRAYIDX2]], align 4
142 ; CHECK-NEXT: [[FCMP:%.*]] = fcmp fast olt float [[RDX]], [[TMP16]]
143 ; CHECK-NEXT: [[FSEL:%.*]] = select fast i1 [[FCMP]], float [[RDX]], float [[TMP16]]
144 ; CHECK-NEXT: br label [[FOR_INC]]
146 ; CHECK-NEXT: [[RES]] = phi float [ [[RDX]], [[FOR_BODY]] ], [ [[FSEL]], [[IF_THEN]] ]
147 ; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
148 ; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
149 ; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
151 ; CHECK-NEXT: [[RES_LCSSA:%.*]] = phi float [ [[RES]], [[FOR_INC]] ], [ [[RDX_MINMAX_SELECT]], [[MIDDLE_BLOCK]] ]
152 ; CHECK-NEXT: ret float [[RES_LCSSA]]
158 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.inc ]
159 %rdx = phi float [ %res, %for.inc ], [ 1.000000e+00, %entry ]
160 %arrayidx = getelementptr inbounds float, ptr %cond, i64 %iv
161 %0 = load float, ptr %arrayidx
162 %tobool = fcmp une float %0, 3.000000e+00
163 br i1 %tobool, label %if.then, label %for.inc
166 %arrayidx2 = getelementptr inbounds float, ptr %a, i64 %iv
167 %1 = load float, ptr %arrayidx2
168 %fcmp = fcmp fast olt float %rdx, %1
169 %fsel = select fast i1 %fcmp, float %rdx, float %1
173 %res = phi float [ %rdx, %for.body ], [ %fsel, %if.then ]
174 %iv.next = add i64 %iv, 1
175 %exitcond.not = icmp eq i64 %iv.next, %N
176 br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0
182 !0 = distinct !{!0, !1}
183 !1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}